Which among the following is an impoant step in acute inflammation?

Stages of acute inflammation:Vasodilation (after a transient vasoconstriction) Increased vascular permeabilityMovement of white blood cells from blood vessels into soft tissue at the site of inflammation: The steps required are rolling, pavementing, and transmigration. Chemotaxis is the process by which white blood cells are drawn to the site of acute inflammation.Ref: Wyatt C., Kemp W.L., Moos P.J., Burns D.K., Brown T.G. (2008). Chapter 2. Inflammation and Repair. In C. Wyatt, W.L. Kemp, P.J. Moos, D.K. Burns, T.G. Brown (Eds), Pathology: The Big Picture.